Dolphin a 4TB SSD

[steve7233]

What does a red line under the SSD mean? I was playing TESS Anniversary Edition yesterday and now my steam library is all grey d out.

[claydoh]

It is full.

You can verify it in a few ways.
Click on the drive entry and see what it shows in Dolphin

OR
Right click on the entry and check properties

[Schwarzer Kater]

Either df -hT or df -hiT could tell you why it is full.

[steve7233]

It's not completely full maybe the red is a warning that it is getting full. Why won't steam see it since it only has steam games on it?

[steve7233]

It is a BTRFS so could that have gotten messed up for steam?

[Schwarzer Kater]

It's not completely full maybe the red is a warning that it is getting full. […]

Yes. The line turns to red when only a certain percentage of the drive is free (5% I guess?).

[oshunluvr]

It is a BTRFS so could that have gotten messed up for steam?

I like to know the logic underlying this potential conclusion. For the record, A have steam installed and several large games and nearly all my file systems are BTRFS. "Barking up the wrong tree comes to mind." I've never heard of the file system type being responsible for filling it up.

Now, it is possible something is wrong with your filesystem. It happens. But not probable.
As possible is a runaway application has created a mess and left behind a large file or files. Also not probable.
WAY more likely the file system is simply full. I didn't see any details about the filesystem itself like it's size or free space.

My Steam application folder (/home/<USER>/.local/share/steam) is 160GB. Seems feasible yours is larger.

A good start might be to open Konsole, navigate to the mount is question, and run this:

du -sch .[!.]* * |sort -h

[jlittle]

I suggest also

sudo btrfs fi usage /home/$USER/.local/share/steam

This can give a better idea of the free space; some tools are confused by COW (copy-on-write).

[claydoh]

Or the sooper-seemple program called Filelight.......

[Schwarzer Kater]

As an alternative to Filelight I often use ncdu to check something like this in Konsole. Don't know how well it works with btrfs, though.

[steve7233]

I solved it like this:

I renamed my Steam library something else then I told Steam to make a new library then I used Dolphin to copy all the files and directories from the old library to the new one. Now Steam can see the games again. I suspect the steam cloud sync got a hiccup and messed up the link so badly that Steam couldn't see the library so it couldn't even try to fix it.